Video processing device, video freezing determination method and display system
US11741999B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video processing device includes: a frame number generating unit that generates frame numbers representing respective frames to which successively supplied video data belongs, the frame numbers differing between one frame and a next frame; a writing unit that writes a data block including a piece of the video data and the frame number corresponding thereto in a frame memory for every frame; a reading unit that reads out the data block written in the frame memory in the order of frames; and a video freezing determination unit that generates an abnormality determination signal that indicates video freezing when a current value of the frame number of the data block read stays the same as a previous value over a prescribed number of times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.